Route reliability record
CHS→EWR
Charleston to Newark
- Flights
- 1,320
- Period
- September 2025 to August 2026
- Distance
- 628 mi
- Carriers
- 3
This route carries a cancellation problem, not just a delay problem: 3.6% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about four flights in five arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,320 CHS to EWR flights, with a median arrival 7 minutes early.
Best time to fly CHS to EWR: a 5am–8am departure, ideally on a Tuesday. Flights in that window arrived on time 92.3% of the time and Tuesday flights 84.9%, against 78.9% for the route overall.
The US average over the same twelve months is 77.3%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
78.9%
Arrivals under 15 minutes late, of 1,270 completed flights
Avg delay
96 min
Across delayed arrivals only, not all flights
Cancelled
3.56%
National rate is 1.89%
Best carrier
United
82.2% on time across 923 flights
These figures cover 1,320 flights between September 2025 and August 2026. Beyond the headline rate, 10.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Which airline is most reliable on CHS to EWR
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 163 | 84.8% | 105 min | 5.52% | B− |
| United Airlines | 923 | 82.2% | 107 min | 2.60% | B |
| Spirit Airlinesthin sample | 234 | 61.4% | 74 min | 5.98% | D− |
Flight by flight
Flights on CHS to EWR
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Best ways to make this trip
The most reliable ways to fly Charleston to Newark
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 3 of the top 4 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. CHS → EWRCharleston to Newark | United Airlines | 80.1% | 82.2% | 2.60% | 5am–8am, Sat | UA 1289 06:00 |
| 2. CHS → LGACharleston to New York | Republic Airways | 72.4% | 77.8% | 6.88% | 8am–11am, Sat | — |
| 3. CHS → JFKCharleston to New York | JetBlue Airways | 68.3% | 72.5% | 5.81% | 5am–8am, Fri | B6 2474 11:10 |
| 4. CHS → LGACharleston to New York | Delta Air Lines | 62.2% | 65.9% | 5.57% | 11am–2pm, Sat | — |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 32 points, against half a point between the best and worst carrier.
- 5am–8am360 flights92.3%
- 8am–11am34 flights84.4%
- 11am–2pm409 flights85.2%
- 2pm–5pm152 flights60.6%
- 5pm–8pm305 flights64.8%
- 8pm–5am60 flights65.5%
Scale runs 50% to 100%.
Book the early departure. Flights leaving between 5am–8am arrive on time 92.3% of the time, against 60.6% for the afternoon window. That is 32 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 409 flights scheduled in it.
Explore
Filter CHS to EWR by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On CHS to EWR, the best departure window is 5am–8am at 92.3% on time and the worst is 2pm–5pm at 60.6%, a wide gap of 31.7 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am92.3%
- 8–11am84.4%
- 11am–2pm85.2%
- 2–5pm60.6%
- 5–8pm64.8%
- 8pm–5am65.5%
best all US flightsScale 50% to 95%.
Across the year
When delays peak on this route
This route's year swings by 21 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
April is the best month on the calendar at 88.3% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. November was the busiest month here, with 140 flights.
Across the week, Tuesday is the strongest day at 84.9% on time and Sunday the weakest at 69.8%, a spread of 15 points.
Delay causes
Why this route gets delayed
National Airspace System accounts for 49% of the 26,000 delay minutes carriers reported here, and the remaining four split what is left.
- 49%National Airspace System
- 31%Late-arriving aircraft
- 18%Carrier
- 3%Extreme weather
- 0%Security
49% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 13,000 minutes out of 26,000, against a national NAS share of 21%. The split is drawn from 25,788 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 92.3% on time here.
Cancellations run at 3.56%, against 1.89% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here actually costs
10.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 628 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg runs 78.9% on time across 1,321 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,320 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in EWR after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 3.56% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,270 completed flights over 12 months sit behind that.
Common questions
CHS to EWR questions
How often is CHS to EWR delayed?
About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.1% of the 1,320 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
How reliable is CHS to EWR compared with the rest of the country?
78.9% of flights arrive on time here against a national 77.3%, a difference of 2 points in its favour. That is worth a B− on this site's grading scale.
What time of day has the fewest delays on CHS to EWR?
The 5am–8am departure window is the strongest at 92.3% on time. The 2pm–5pm window is the weakest at 60.6%, 32 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are October delays on CHS to EWR?
October is the weakest month at 66.9% on time, compared with 88.3% in April. Across the year that is 21 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- EWR to CHS — the return legseparate record
- Charleston International (CHS) delay statistics
- Newark Liberty International (EWR) delay statistics
- Republic Airways on CHS to EWR84.8%
- United Airlines on CHS to EWR82.2%
- Spirit Airlines on CHS to EWR61.4%
- CHS to ATL, a related route88.9%
- MCO to EWR, a related route75.0%
- CHS to CLT, a related route82.7%
- Republic Airways on-time record84.8%
- United Airlines on-time record82.2%
- Spirit Airlines on-time record61.4%
- The US routes with the most cancellations
- What a cancellation rate actually tells you (and what it hides)
Direction matters. CHS to EWR and EWR to CHS are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.